Article

OBJECTIVES: To assess the association between physical fitness and fibromyalgia
(FM) severity in women with FM as well as to assess whether different fitness
components present an independent relation with FM severity. DESIGN:
Population-based cross-sectional study. SETTING: University facilities and FM
associations. PARTICIPANTS: Women with FM (N=444). INTERVENTIONS: Not applicable.
MAIN OUTCOME MEASURES: FM severity was assessed with the Revised Fibromyalgia
Impact Questionnaire (FIQR). Aerobic fitness (6-min walk test), muscle strength
(handgrip, chair stand, and arm curl tests), flexibility (chair sit and reach and
back scratch tests), and motor agility (8 foot Up and Go test) were measured with
the Senior Fitness Test battery and digital dynamometry. A standardized composite
score (hereafter "global fitness profile") was calculated and divided into
quintiles. RESULTS: Overall, physical fitness was significantly associated with
the FIQR total and subscale scores, regardless of the fitness test used (all
P<.05). The 6-minute walk and back-scratch tests were independently associated
with the FIQR total score (R(2)=.88; both P<.005). The group with the highest
global fitness profile had 16% lower FM severity than did the group with the
lowest global fitness profile (P<.001). CONCLUSIONS: Our results suggest that
higher physical fitness is consistently associated with lower FM severity in
women with FM. Aerobic fitness and flexibility present independent associations
with FM severity. However, the FIQR variability explained by these fitness tests
was rather low (<10%), and further research on the potential disagreement between
performance-based physical fitness and different self-reported outcomes in women
with FM is warranted.
CI - Copyright (c) 2015 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS